package com.demo.ruiji.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.demo.ruiji.common.R;
import com.demo.ruiji.config.RedisConfig;
import com.demo.ruiji.pojo.User;
import com.demo.ruiji.service.UserService;
import com.demo.ruiji.utils.SMSUtils;
import com.demo.ruiji.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@Slf4j
@RequestMapping("/user")
public class UserController {
    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机短信验证码
     * @param user
     * @param session
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session) {
        // 获取手机号
        String phone = user.getPhone();

        // 生成4位随机的验证码
        if (StringUtils.isNotEmpty(phone)) {
            // 生成随机的验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();

            log.info("code={}",code);

//            // 调用阿里云提供的短信服务发送短信
//            SMSUtils.sendMessage("阿盛","SMS_154950909",phone,code);

//            需要将生成的验证码保存到session
//            session.setAttribute(phone,code);

            //将生成的验证码缓存到Redis中，并设置有效期为5分钟
            redisTemplate.opsForValue().set(phone,code,5, TimeUnit.MINUTES);

            return R.success("手机验证码发送成功");
        }
        return R.success("手机验证码发送失败");
    }

    /**
     * 登录验证
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session) {

        log.info(map.toString());

        // 获取手机号
        String phone = map.get("phone").toString();
        // 获取验证码
        String code = map.get("code").toString();
        // 从session中获取保存的验证码
        //String codeInSession = session.getAttribute(phone).toString();
        //从redis中获取保存的验证码
        Object codeInSession = redisTemplate.opsForValue().get(phone);

        // 进行验证码的比对（页面提交的验证码和redis中保存的验证码比对）
        if (codeInSession != null && codeInSession.equals(code)) {
            LambdaQueryWrapper<User> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(User::getPhone,phone);
            User user = userService.getOne(queryWrapper);
            if (user == null) {
                // 新用户注册
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            // 登录成功，将用户id存入session中
            session.setAttribute("user",user.getId());
            //如果用户登录成功，删除Redis中缓存的验证码
            redisTemplate.delete(phone);
            log.info("登录成功");
            return R.success(user);
        }

        return R.error("验证码错误，登录失败");
    }

}
